This is a tough one. Efficiency is what tends to be the ultimate goal of any venture, and getting 5 things 80% done instead of 1 thing 100% done is incredibly e

This is a tough one. Efficiency is what tends to be the ultimate goal of any venture, and getting 5 things 80% done instead of 1 thing 100% done is incredibly efficient. Moreover, no matter what course of action you choose, it will have downsides, you only get to choose which ones. I'm not so sure that the downsides of this hyper-efficient approach are worse than those of the alternatives. There's a bit of human bias at work here, you focus on the downsides in front of you because those are the ones you can see. However, you ignore the downsides other approaches would have because you can't see them. That doesn't mean they don't exist. Another aspect, it's considerably easier to find and solve problems with an implemented solution than an unimplemented one. That's what this hyper-optimized approach is likely great at - paving the way for other engineers. In the end, I think you need a few such 80/20 engineers on your team, but they must be coupled with a few "completionist" types as well, who'll come in afterwards to bring everything up to standard.